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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 185 · 40 questions
TalentJR

How to think it through (Find the jump): Write the jump between each pair of neighbours (+3, +3, +3 … or × 2, × 2 …). If the jumps are not equal, look at the jumps themselves: do they grow by 1, take turns, or are the numbers squares (1, 4, 9, 16 …)? Use the same rule once more to get the next number.

NameDateTime takenScore ___ / 40
  1. 1.What comes next? 20, 28, 36, 44, 52, ?
  2. 2.What comes next? 10, 17, 13, 20, 16, 23, ?
  3. 3.What comes next? 19, 28, 24, 33, 29, 38, ?
  4. 4.What comes next? 17, 26, 37, 50, 65, ?
  5. 5.What comes next? 15, 24, 35, 48, 63, ?
  6. 6.What comes next? 1, 8, 3, 10, 5, 12, ?
  7. 7.What comes next? 1, 2, 4, 8, 16, ?
  8. 8.What comes next? 2, 5, 8, 11, 14, ?
  9. 9.What comes next? 3, 9, 8, 14, 13, 19, ?
  10. 10.What comes next? 1, 9, 6, 14, 11, 19, ?
  11. 11.What comes next? 8, 11, 15, 20, 26, ?
  12. 12.What comes next? 5, 8, 12, 17, 23, ?
  13. 13.What comes next? 1, 3, 9, 27, 81, ?
  14. 14.What comes next? 2, 4, 8, 16, 32, ?
  15. 15.What comes next? 5, 15, 45, 135, 405, ?
  16. 16.What comes next? 3, 6, 10, 15, 21, ?
  17. 17.What comes next? 26, 37, 50, 65, 82, ?
  18. 18.What comes next? 1, 6, 11, 16, 21, ?
  19. 19.What comes next? 5, 10, 20, 40, 80, ?
  20. 20.What comes next? 4, 12, 36, 108, 324, ?
  21. 21.What comes next? 4, 8, 16, 32, 64, ?
  22. 22.What comes next? 2, 8, 14, 20, 26, ?
  23. 23.What comes next? 14, 21, 28, 35, 42, ?
  24. 24.What comes next? 3, 6, 12, 24, 48, ?
  25. 25.What comes next? 3, 9, 27, 81, 243, ?
  26. 26.What comes next? 1, 4, 9, 16, 25, ?
  27. 27.What comes next? 4, 8, 12, 16, 20, ?
  28. 28.What comes next? 17, 26, 35, 44, 53, ?
  29. 29.What comes next? 3, 10, 4, 11, 5, 12, ?
  30. 30.What comes next? 16, 25, 36, 49, 64, ?
  31. 31.What comes next? 36, 49, 64, 81, 100, ?
  32. 32.What comes next? 18, 22, 21, 25, 24, 28, ?
  33. 33.What comes next? 8, 10, 12, 14, 16, ?
  34. 34.What comes next? 25, 36, 49, 64, 81, ?
  35. 35.What comes next? 12, 16, 20, 24, 28, ?
  36. 36.What comes next? 15, 17, 20, 24, 29, ?
  37. 37.What comes next? 12, 16, 15, 19, 18, 22, ?
  38. 38.What comes next? 6, 9, 13, 18, 24, ?
  39. 39.What comes next? 8, 16, 24, 32, 40, ?
  40. 40.What comes next? 11, 12, 14, 17, 21, ?

Answer key

  1. 60
  2. 19
  3. 34
  4. 82
  5. 80
  6. 7
  7. 32
  8. 17
  9. 18
  10. 16
  11. 33
  12. 30
  13. 243
  14. 64
  15. 1215
  16. 28
  17. 101
  18. 26
  19. 160
  20. 972
  21. 128
  22. 32
  23. 49
  24. 96
  25. 729
  26. 36
  27. 24
  28. 62
  29. 6
  30. 81
  31. 121
  32. 27
  33. 18
  34. 100
  35. 32
  36. 35
  37. 21
  38. 31
  39. 48
  40. 26

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